Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

To the class members how can we provide security?

Aspire,

1 5139

What is the Difference between Final Class && Abstract Class?

HCL,

1033

can used Protected Class outside Function.?

HCL,

1062

why Interface used?

HCL,

958

What happens if an exception is throws from an object's destructor?

Amazon,

994

What is reflexive association?

Infogain,

1 1714

What is the difference between public, private, protected, and friend access?

Amazon,

1002

For class CFoo { }; what default methods will the compiler generate for you>?

Amazon,

1029

What do you meant by active and passive objects?

Wipro,

1027

What is an accessor?

BirlaSoft,

1 1616

What is a Null object?

Wipro,

1 1536

What is a "pure virtual" member function?

Amazon,

1049

What is a modifier?

1 1439

What happens if an exception is throws from an object's constructor?

Amazon,

1084

What is static class

EDS,

1058

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Un-Answered Questions { Core Java }

What is qualitative variable?

881

what is the purpose of the wait(), notify(), and notifyall() methods? : Java thread

937

How the interruptible method gets implemented?

923

What is the purpose of a volatile variable?

984

Is upper case in java?

929

What is use of static in java?

1106

What is slash r?

960

What are thread safe functions?

904

What is a final class in java?

971

What environment variables are required to be set on a machine in order to run Java programs?

1133

What is the difference between hashset and treeset in java?

1013

In multi-threading how can we ensure that a resource isn't used by multiple threads simultaneously?

1278

What is an exception? difference between Checked and Unchecked exception in Java

963

What is the purpose of declaring a variable as final?

927

What are the advantages of defining packages in java?

931

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